An investigation into a series of vandalism incidents led to the arrest of a Thousand Oaks man who was also accused of stalking and identity theft.

The investigation began after a series of vandalism incidents occurred at an apartment complex in the 2000 block of Los Feliz Drive, according to authorities. Between the beginning of October and December, 20 victims reported their vehicles were vandalized with spray-paint graffiti, authorities said.

Detectives with the Thousand Oaks police special enforcement unit began investigating by interviewing the victim of the first incident. Police said she believed the crimes were being committed by her ex-boyfriend, identified as Juan Hernandez, 39, of Thousand Oaks. The victim said she had ended her relationship with Hernandez shortly before the first vandalism incident and that she feared for her safety, according to authorities.

Through an investigation, detectives gathered evidence linking Hernandez to the vandalism incidents, authorities reported. They said they also found he had used the victim's personal identifying information to create a new credit card account.

On Thursday, authorities pulled Hernandez over while he was driving on Highway 23 and served a search warrant on his vehicle. Officers found evidence connecting him with the vandalism incidents and took him into custody, according to authorities.

Hernandez was arrested on suspicion of stalking, identity theft and vandalism, all felony charges, according to authorities. He was booked into county jail and remained in custody in lieu of $250,000 bail.